Method of making heel-plates.



J. RIGHER. METHOD OF MAKING HEEL PLATES.

APPLICATION FILED MAYZB, 1911.

1,01 9,91 9. 1 Patented Mar. 12, 1912.

wen/r012 WITNESSES: 1 v

TTNITED STATES PATENT OFFICE. JOSEPH BTCHER, OF WATERBURY, CONNECTICUT, ASSIGNOB OF ONE-THIRD TO NILS A. HILDING AND ONE-THIIFD T0 NILS I. LUNDIN, BOTH OF WATEBBURY,

CONN ECTIGUT.

METHOD OF MAKING HEEL-PLATES.

Specification of Letters latent.

Application filed May 23, 1911. Serial No. 628,912.

Patented Mar. 12,1912.

To all whom it may concern:

Be it known that I, J osnr i Brenna, a subject of the King of Sweden, residing at Waterbury, county of New Haven, State of Connecticut, have invented 'an Improved Method of Making Heel Plates, of which the following is a specification.

This invention relates to an improved method of making heelplates for boots and shoes and has for its ob ect to produce simple, durable and inexpensive heel plates which shall be provided with means for attaching them in place.

The invention will be hereinafter fully set forth and particularly pointed out in the claim.

In the accompanying drawing :'-Figure 1 is an inverted plan view of my novel heelplate as in use; Fig. 2 an end elevation thereof; Fig. 3 a rear elevation thereof; Fig. 4 a cross section thereof'on an enlargedscale; Fig. 5 a plan view of the strip from which the plates are made; Fig. 6 a cross section of the strip on the line 66 in Fig. 5;-and Fig. 7 is an elevation of one of the nails detached.

- In carrying out my process, special stripsof metal are rolledas illustrated in Figs. 5

- and 6. These strips are flat on one side, are

thickestat the center and taper toward the edges, at which the thickness is half, more or less, the thickness at the center. The finished plates are secured in place by means of nails rigidly inserted therein-in the manner which I shall presently describe. The form of nails used, greatly enlarged, is

clearly shown in Fig. 7. They are pointed in the usual manner, as indicated at 10, and are provided wlth outwardly tapering heads -11, the taper ofthe heads being appreciably longer than the greatest thickness of the plates.

The piercing of the strip the. blanking out of the plates, the setting of the nails therein andthe corrugation of the outer face of the plates are all performed mechanically by means "ofsuitable punches and dies in presses. The first operation pierces holes in the strip,-the punches being 'so located as to form the required number of holes, three in blanked with their backs toward the center i of the strip, so that the thickened center of the strip goes to form the backs of the plates, making the plates thickest at the back and tapering toward the front. B making the holes taper from the outer si es of the plates inward and the heads of the nails tapered to correspond therewith, I insure that as the plates wear away in use they will still be held just as tightly by the nails.

As already stated, the heads of the nails are made longer than the greatest thickness of the plates. The nails are rigidly locked in the plates in the setting operation by upsetting the inner ends of the heads forming collars 12 upon the inner sides of the plates at the base of the projecting portion of the nails. These collars render it practically impossible for the nails to be forced backward through a plate when the nails are.

driven into a heel in making anattachment and the taperin heads of the nails retain the nails locked -1n the plates until the plates are completely worn awa Having thus described my invention I claim: I The method of makin heelI plates comprising providing one. ace of a strip of.

metal wlth a .flat surface and the opposite face with an angularly convexed surface tapering from the longltudinal median'line to the ed s, and finall blanking out the plates witthe backs o the plates toward the middle or thickened ortion of the strip. In testimony whereof I aflix my signature in presence of two witnesses. Y JOSEPH RICHER.

Witnesses:

\"FRANGIS T. Rnnvns, Nine A. Hmnma. 

